<!--<li class="begin"><a href="/" class="ck" onmousemove="changmenu(this)">网站首页</a></li>-->
<ul id="Mainmenu">
<{volist name="tree" id="item"}>
    <{if condition="($key eq 0)"}>
    <li class="begin" ><a href="<{$item.url}>" onmousemove="changmenu(this)"><{$item.name}></a></li>
    <{else /}>
    <li ><a href="<{$item.url}>" onmousemove="changmenu(this)"><{$item.name}></a></li>
    <{/if}>
<{/volist}>
</ul>
<script language="javascript">
    function changmenu(obj){
        var alinks=document.getElementById('Mainmenu').getElementsByTagName('a');
        for(var i=0;i<alinks.length;i++){
            alinks[i].className='';
        }
        obj.className='ck';
    }
</script>